Find the uncertainty in a calculated average speed from the measurements of distance and time. Average speed depends on distance and time according to this function v(t, x) = x/t. Your measured distance and time have the following values and uncertainties x = 6.1 meters, 2.3 meters and t = 6.3 seconds and 1.5 seconds. What is the uncertainty in the average speed, ? Units are not needed in your answer.

The uncertainty in the average speed is 0.134 meters per second.

Step-by-step explanation:

Let be the average speed function, we calculate the uncertainty in the average speed by total differentials, which is in this case:

Where:

- Uncertainty in the average speed, measured in meters per second.

- Partial derivative of the average speed function with respect to distance, measured in .

- Partial derivative of the average speed function with respect to time, measured in meters per square second.

- Uncertainty in distance, measured in meters.

- Uncertainty in time, measured in seconds.

Partial derivatives are, respectively:

,

Then, the total differential expression is expanded as:

If we get that , , and , the uncertainty in  the average speed is:

The uncertainty in the average speed is 0.134 meters per second.

the answer is 510

step-by-step explanation:

15 • 13 = 195

15 • 12 = 180

15 • 5 = 75

12 • 5 = 60

195 + 180 = 375

375 + 75 = 450

450 + 60 = 510